Celestron93625 1.25 Inch Universal SLR or DSLR Camera T-Adapter, Silver/Black

I received the Celestron 93625 Universal 1.25-inch Camera T-Adapter on time as promised. The adapter met or exceeded the advertised specifications and was well constructed. It performed great on my Dynamax 8 as expected. I would recommend it for use when the camera is mounted into the telescope eyepiece holder. Your eyepiece holder must be sturdy enough to hold a SLR or DSLR camera body. I did not have any problems with focusing on my Dynamax 8. Balancing my camera/telescope combination took a little work since I was using a 90 degree erecting eyepiece holder on my telescope. A straight through eyepiece holder may be better. If your telescope permits removal of the eyepiece holder then you may wish to get the Celestron T-Mount or the Opteka T-Mount Adapter to fit your particular SLR or DSLR camera. I later used the T-Mount Adapter to attach my camera directly to my telescope and eliminating the telescope's removable eyepiece holder. I did NOT have any focusing problems with the camera T-Adapter or the camera T-Mount adapter with my Dynamax 8 telescope. The adapters are designed to be used with the camera lens removed. The Celestron camera adapter permits the insertion of a 1.25 diameter plain barrel eyepiece into the adapter to increase the magnifying power but this reduces the light greatly due to the added lenses of the eyepiece and from the eyepiece projected image onto the film or camera sensor chip. The reduced light will require longer exposures and therefore require manual tracking or a telescope tracking device (clock drive). When using an inserted eyepiece into the camera T-Adapter, care must be taken to make sure that longer barrel eyepieces do not obstruct the camera's mirror flip-up action.

Works great! Now I have a quick switch to mount my Nikon to photograph the coming solar eclipse.

I ordered this for a telescope to do some back yard astrophotography, and it gets the job done. It easily attached to the telescope, and my camera sat inside of it well.The only issues I had was that my camera was a little loose, which would make it difficult to snap clear pictures. Overall, its a good product!!

I guess the designer of this product wanted, for some reason, to allow eyepieces to be used inside it. Or perhaps a barlow lens. But the result is an adapter that is longer than it needs to be, and that moves the camera more than an inch farther than necessary from the image plane of the telescope's primary optic. This makes the adapter unusable with most Newtonian reflectors built for visual use: the film/sensor plane of the camera can't be brought close enough to the objective to bring an image into focus. Even on a refractor of catadioptric telescope, the length of the adapter needlessly increases torque around the point where the focusing tube enters the focuser. I'm not sure whether Amazon carries any, but there are low-profile adapters that minimize this effect, and are better for most prime-focus astrophotography.UPDATE: After using this product for almost a year, I've decided that it warrants one more star than I gave it at first. The product has held up very well in fairly heavy use. I've also found that the space inside the adapter is more useful than I initially realized. I did have to purchase a shorter adapter from another source to get my camera sensor to prime focus of my Newtonian's primary mirror without a Barlow lens. But since I do have a "shorty" Barlow from which the lens can be separated, I have found that slipping that separated Barlow element into the empty space in this adapter, and securing it there with the setscrew, does make for a nice, moderately amplified image. Amazon does also sell a similar Celestron product,  Celestron T Adapter/Barlow 1.25 Universal (Req. T-Ring) that puts a Barlow at the front of what appears to be this same adapter. All things being equal, however, a Barlow lens closer to the focal plane of the camera causes less amplification, requiring less of an increase in exposure (and hence less tracking accuracy).

It fits correctly and gets the job done.You may need other adapters to work with your camera. For my setup, my Nikons have F-mounts, so I also need a F-mount to T-mount adapter. Then you have to readjust the telescope for balance with the camera hanging off it.The adapters aren't very expensive, so you're not making a huge investment, and they're nice to have around.If your camera will allow it, have it leave the mirror up. If your telescope isn't on a very solid mount, the mirror flipping will make the photo blurry. Also, touching the shutter button will do the same.I attached it to my laptop, so I could use that as my viewfinder, and trigger it remotely. That gave me very respectable results.

The description for this product does not mention that using this T adapater will not allow the camera to focus on many Newtonian reflectors because the adapter basically extends the focuser and will not allow it to travel in far enough to achieve focus with the camera.There are a few fixes for this. First, check the focuser on the scope to see if the eyepiece holder will unscrew and allow you to screw the camera's adapter directly to it. If not, you can purchase a 2x barlow (Celestron item # 93640) that includes a T-adaptor on it or a zoom lens with threads for a filter that will also allow you to directly attach your camera adapter such as Celestron's 8mm - 24mm item # 93230. Obviously, including a lens in the equation magnifies the image which you may or may not want.The most expensive and intrusive is to replace the focuser with an aftermarket focuser that will allow this to work.Other than the fact that it was not directly compatible with my scope, the quality of the T adapter was very good which is typical for Celestron products.

Fit is perfect

Works great fit is perfect

I am very new to astronomy and hadn't heard of a Barlow Lens before but as a complete beginner, I think this is a must have.It's very cheap to buy and doubles the magnification of each eye piece which has so far provided some fantastic views of the moon and a couple of other bits. Prior to buying this, I spent a lot of time on the various forums doing research but the impression I get is that astronomy is one of those areas where everybody has an opinion on the various bits available and the people with more expertise can be quite critical to certain products that are in practice, absolutely fine for the beginner/novice.I think this product is a great price point, very good quality and unless you are significantly more experienced, is likely to do the job perfectly for you.

Celestron e macchina fotografica e distanza focale. Ottima transazione e spedizione

A questo prezzo non credo si trovi di meglio, ottimo rapporto qualità-prezzo. Sono rimasto piacevolmente sorpreso.